1 #ifndef JEMALLOC_INTERNAL_INLINES_C_H 2 #define JEMALLOC_INTERNAL_INLINES_C_H 3 4 #include "jemalloc/internal/jemalloc_internal_types.h" 5 #include "jemalloc/internal/sz.h" 6 #include "jemalloc/internal/witness.h" 7 8 /* 9 * Translating the names of the 'i' functions: 10 * Abbreviations used in the first part of the function name (before 11 * alloc/dalloc) describe what that function accomplishes: 12 * a: arena (query) 13 * s: size (query, or sized deallocation) 14 * e: extent (query) 15 * p: aligned (allocates) 16 * vs: size (query, without knowing that the pointer is into the heap) 17 * r: rallocx implementation 18 * x: xallocx implementation 19 * Abbreviations used in the second part of the function name (after 20 * alloc/dalloc) describe the arguments it takes 21 * z: whether to return zeroed memory 22 * t: accepts a tcache_t * parameter 23 * m: accepts an arena_t * parameter 24 */ 25 26 JEMALLOC_ALWAYS_INLINE arena_t * 27 iaalloc(tsdn_t *tsdn, const void *ptr) { 28 assert(ptr != NULL); 29 30 return arena_aalloc(tsdn, ptr); 31 } 32 33 JEMALLOC_ALWAYS_INLINE size_t 34 isalloc(tsdn_t *tsdn, const void *ptr) { 35 assert(ptr != NULL); 36 37 return arena_salloc(tsdn, ptr); 38 } 39 40 JEMALLOC_ALWAYS_INLINE void * 41 iallocztm(tsdn_t *tsdn, size_t size, szind_t ind, bool zero, tcache_t *tcache, 42 bool is_internal, arena_t *arena, bool slow_path) { 43 void *ret; 44 45 assert(size != 0); 46 assert(!is_internal || tcache == NULL); 47 assert(!is_internal || arena == NULL || arena_is_auto(arena)); 48 if (!tsdn_null(tsdn) && tsd_reentrancy_level_get(tsdn_tsd(tsdn)) == 0) { 49 witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), 50 WITNESS_RANK_CORE, 0); 51 } 52 53 ret = arena_malloc(tsdn, arena, size, ind, zero, tcache, slow_path); 54 if (config_stats && is_internal && likely(ret != NULL)) { 55 arena_internal_add(iaalloc(tsdn, ret), isalloc(tsdn, ret)); 56 } 57 return ret; 58 } 59 60 JEMALLOC_ALWAYS_INLINE void * 61 ialloc(tsd_t *tsd, size_t size, szind_t ind, bool zero, bool slow_path) { 62 return iallocztm(tsd_tsdn(tsd), size, ind, zero, tcache_get(tsd), false, 63 NULL, slow_path); 64 } 65 66 JEMALLOC_ALWAYS_INLINE void * 67 ipallocztm(tsdn_t *tsdn, size_t usize, size_t alignment, bool zero, 68 tcache_t *tcache, bool is_internal, arena_t *arena) { 69 void *ret; 70 71 assert(usize != 0); 72 assert(usize == sz_sa2u(usize, alignment)); 73 assert(!is_internal || tcache == NULL); 74 assert(!is_internal || arena == NULL || arena_is_auto(arena)); 75 witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), 76 WITNESS_RANK_CORE, 0); 77 78 ret = arena_palloc(tsdn, arena, usize, alignment, zero, tcache); 79 assert(ALIGNMENT_ADDR2BASE(ret, alignment) == ret); 80 if (config_stats && is_internal && likely(ret != NULL)) { 81 arena_internal_add(iaalloc(tsdn, ret), isalloc(tsdn, ret)); 82 } 83 return ret; 84 } 85 86 JEMALLOC_ALWAYS_INLINE void * 87 ipalloct(tsdn_t *tsdn, size_t usize, size_t alignment, bool zero, 88 tcache_t *tcache, arena_t *arena) { 89 return ipallocztm(tsdn, usize, alignment, zero, tcache, false, arena); 90 } 91 92 JEMALLOC_ALWAYS_INLINE void * 93 ipalloc(tsd_t *tsd, size_t usize, size_t alignment, bool zero) { 94 return ipallocztm(tsd_tsdn(tsd), usize, alignment, zero, 95 tcache_get(tsd), false, NULL); 96 } 97 98 JEMALLOC_ALWAYS_INLINE size_t 99 ivsalloc(tsdn_t *tsdn, const void *ptr) { 100 return arena_vsalloc(tsdn, ptr); 101 } 102 103 JEMALLOC_ALWAYS_INLINE void 104 idalloctm(tsdn_t *tsdn, void *ptr, tcache_t *tcache, alloc_ctx_t *alloc_ctx, 105 bool is_internal, bool slow_path) { 106 assert(ptr != NULL); 107 assert(!is_internal || tcache == NULL); 108 assert(!is_internal || arena_is_auto(iaalloc(tsdn, ptr))); 109 witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), 110 WITNESS_RANK_CORE, 0); 111 if (config_stats && is_internal) { 112 arena_internal_sub(iaalloc(tsdn, ptr), isalloc(tsdn, ptr)); 113 } 114 if (!is_internal && !tsdn_null(tsdn) && 115 tsd_reentrancy_level_get(tsdn_tsd(tsdn)) != 0) { 116 assert(tcache == NULL); 117 } 118 arena_dalloc(tsdn, ptr, tcache, alloc_ctx, slow_path); 119 } 120 121 JEMALLOC_ALWAYS_INLINE void 122 idalloc(tsd_t *tsd, void *ptr) { 123 idalloctm(tsd_tsdn(tsd), ptr, tcache_get(tsd), NULL, false, true); 124 } 125 126 JEMALLOC_ALWAYS_INLINE void 127 isdalloct(tsdn_t *tsdn, void *ptr, size_t size, tcache_t *tcache, 128 alloc_ctx_t *alloc_ctx, bool slow_path) { 129 witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), 130 WITNESS_RANK_CORE, 0); 131 arena_sdalloc(tsdn, ptr, size, tcache, alloc_ctx, slow_path); 132 } 133 134 JEMALLOC_ALWAYS_INLINE void * 135 iralloct_realign(tsdn_t *tsdn, void *ptr, size_t oldsize, size_t size, 136 size_t extra, size_t alignment, bool zero, tcache_t *tcache, 137 arena_t *arena) { 138 witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), 139 WITNESS_RANK_CORE, 0); 140 void *p; 141 size_t usize, copysize; 142 143 usize = sz_sa2u(size + extra, alignment); 144 if (unlikely(usize == 0 || usize > LARGE_MAXCLASS)) { 145 return NULL; 146 } 147 p = ipalloct(tsdn, usize, alignment, zero, tcache, arena); 148 if (p == NULL) { 149 if (extra == 0) { 150 return NULL; 151 } 152 /* Try again, without extra this time. */ 153 usize = sz_sa2u(size, alignment); 154 if (unlikely(usize == 0 || usize > LARGE_MAXCLASS)) { 155 return NULL; 156 } 157 p = ipalloct(tsdn, usize, alignment, zero, tcache, arena); 158 if (p == NULL) { 159 return NULL; 160 } 161 } 162 /* 163 * Copy at most size bytes (not size+extra), since the caller has no 164 * expectation that the extra bytes will be reliably preserved. 165 */ 166 copysize = (size < oldsize) ? size : oldsize; 167 memcpy(p, ptr, copysize); 168 isdalloct(tsdn, ptr, oldsize, tcache, NULL, true); 169 return p; 170 } 171 172 JEMALLOC_ALWAYS_INLINE void * 173 iralloct(tsdn_t *tsdn, void *ptr, size_t oldsize, size_t size, size_t alignment, 174 bool zero, tcache_t *tcache, arena_t *arena) { 175 assert(ptr != NULL); 176 assert(size != 0); 177 witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), 178 WITNESS_RANK_CORE, 0); 179 180 if (alignment != 0 && ((uintptr_t)ptr & ((uintptr_t)alignment-1)) 181 != 0) { 182 /* 183 * Existing object alignment is inadequate; allocate new space 184 * and copy. 185 */ 186 return iralloct_realign(tsdn, ptr, oldsize, size, 0, alignment, 187 zero, tcache, arena); 188 } 189 190 return arena_ralloc(tsdn, arena, ptr, oldsize, size, alignment, zero, 191 tcache); 192 } 193 194 JEMALLOC_ALWAYS_INLINE void * 195 iralloc(tsd_t *tsd, void *ptr, size_t oldsize, size_t size, size_t alignment, 196 bool zero) { 197 return iralloct(tsd_tsdn(tsd), ptr, oldsize, size, alignment, zero, 198 tcache_get(tsd), NULL); 199 } 200 201 JEMALLOC_ALWAYS_INLINE bool 202 ixalloc(tsdn_t *tsdn, void *ptr, size_t oldsize, size_t size, size_t extra, 203 size_t alignment, bool zero) { 204 assert(ptr != NULL); 205 assert(size != 0); 206 witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), 207 WITNESS_RANK_CORE, 0); 208 209 if (alignment != 0 && ((uintptr_t)ptr & ((uintptr_t)alignment-1)) 210 != 0) { 211 /* Existing object alignment is inadequate. */ 212 return true; 213 } 214 215 return arena_ralloc_no_move(tsdn, ptr, oldsize, size, extra, zero); 216 } 217 218 #endif /* JEMALLOC_INTERNAL_INLINES_C_H */ 219
